Paris Hilton and boyfriend River Viiperi attended the after party for The Bling Ring in Cannes last night, and it looks like the heiress really hit it off with it girl Cara Delevingne!

P tweeted, "I loved The @BlingRingMovie! Sofia Coppola is such a talented director. @EmWatson and the rest of the cast were amazing! #AMustSeeFilm," and later she posted the pic below and wrote, "Met one of my idols tonight at The @BlingRingMovie after party. The amazing Christian Louboutin! #Legend #Icon #RedBottoms."

Don't be such a modest momager!

Kris Jenner spent the day filming with pregnant daughter Kim yesterday, and the reality TV matriarch must have been in a cheeky mood because she took her phone out to turn the lens on the photographers and showed off her "Queen of F**king Everything" iPhone case.

We wonder how husband Bruce Jenner feels about his wife's self-proclaimed title?

The 57-year-old grandma is gearing up to be the queen of daytime TV when her talk show Kris launches!

"She's excited to get even more famous with the show and will prove to everyone that she's more than just a reality star. She says she wants to be the new Barbara Walters, and knows how to get people to open up and reveal their deepest, darkest secrets. She is the Barbara Walters for the new generation," a source dished to Hollywood Life.

Kimmy K's mom better be careful about comparing herself to award-winning journalists!

Last night Mariah Carey sang at the American Idol finale, and though she looked spectacular in an ornate white gown, everyone is buzzing about the fact that her performance was taped ... and that she may have been lip syncing!

Mariah took the stage for a seven-minute medley of some of her biggest hits, including "Vision of Love," "Make it Happen," "Hero" and her new tune "#Beautiful," and fans at the finale were quite disappointed that she didn't sing live. An X17 reporter at the show tells X17online exclusively:

"Producers asked the audience to get excited for Mariah's performance, and then the screens dropped from the ceiling and they played a video of her singing - no one could believe it.  When the video was over, the crowd was supposed to cheer but instead everyone just sat there staring at each other.  And the judges' mood was beyond mild - they all seemed bored.  Mariah and Nicki [Minaj] didn't look at each other, and even Randy [Jackson] was unemotional about it being his last show."

And not only that, but Mariah acted like she was over it as soon as she walked in the building! Our source at the show added, "Hair and makeup primped her between every commercial break and not a strand of hair had even moved. She was texting the whole night and looked like she would rather be anywhere but there."

Despite fans tweeting that she wasn't actually singing, Mariah's rep told Entertainment Tonight, “No, she did not lip-sync! She sang 3x and even sang additional songs for fans in between [commercials.]”

Mariah just announced that she's embarking on a world tour, and based on how unenthused she was at the show last night, we're guessing it's only a matter of time before she announces that she's leaving. Randy's out, rumor has it Nicki is dunzo and even Fox exec Kevin Reilly couldn't confirm that anyone was coming back, as he told E! News earlier this week that "everything at this point is on the table, and we'll talk about that starting Friday."

We sense a hit in the making!

Justin Bieber and Miley Cyrus were hard at work at the same recording studio in Hollywood last night, and their timing was way too coincidental to not jump to the conclusion that the two pop stars must be recording a duet together!

The Biebs mugged for the camera at a photo shoot at Milk Studios earlier in the night, then headed over to the studio around 8p.m., with Miss Miley arriving a short time later around 9p.m. They left within minutes of each other around midnight and tried to avoid being photographed. Hmm....

Our photographers tells us:

"There aren't that many recording booths at this studio; they MUST be doing something together. Justin and Miley left within minutes of each other - it's too coincidental. There's gotta be a collaboration in the works."

We can't think of two people we'd rather bring together!

They're inseparable!

Yesterday, Hilary Duff decided to take her adorable little boy Luca out with her as she did a bit of shopping at Neiman Marcus.

The 25-year-old actress and mother has enjoyed motherhood but recently admitted that things weren't always sunshine and lollipops.

"I was enjoying being home with my baby, and I wasn't super strict with my diet," she told Life & Style. "I never had to lose so much before, and it took a while to get mentally motivated. I'm finally at a comfortable place with my body."

Looks like her regime, which included a revamped diet & boxing, paid off!

From the looks of it, things must be going well for Sandra Bullock as she appeared in a cheerful mood on Thursday.

The Academy Award winning actress, who donned a cute gray & black loose dress, has been gearing up for the release of her next big thriller Gravity alongside George Clooney, her second film since her 2009 breakout hit The Blind Side.

Guess it's safe to say life is good for our Sandy!

On Thursday, Jessica Alba was looking cool and casual as she went grocery shopping at Bristol Farms in Beverly Hills.

The 32-year-old actress and mother has been enjoying some recent internet fame as her Street Fighter pictures, which all started with her and hubby Cash Warren back in April, have gone viral and has now become a popular meme.

Anything she does just gets attention!

But judging by the look on her face, she can't be that comfortable!

On Thursday Kim Kardashian and mom Kris Jenner filmed their reality show at Naimie's Beauty Center in Studio City, and Kim wore an outfit very reminiscent of the white Tom Ford number Gwyneth Paltrow wore to the Oscars back in 2012. Love the cape!

Kanye West's baby mama may look fab, but her feet HAVE to be killing her. Her skin was spilling out of the strappy sandals, and she already showed us a snapshot of how swollen her feet were earlier this month, so we can't imagine how much pain she's in right now!